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Dr. Jonathan Chan

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PHOTO: An undated stock photo showing a man and a pregnant woman.
STOCK PHOTO/Getty Images

Men’s marijuana use increases miscarriage risk for women, new research finds

PHOTO: A dad cradles his newborn daughter in his arms.
Getty Images, FILE

Babies at higher risk of heart defects if dad drinks alcohol before conception: Study

PHOTO: In this undated stock photo an African American woman getting a mammogram.
STOCK PHOTO/Getty Images

Breast cancer disparities: Black women more likely than white women to die from breast cancer in the US

PHOTO: A patient has a mammogram in France on Oct. 9, 2017.
AFP/Getty Images, FILE

October is Breast Cancer Awareness Month: What to know about the latest developments in breast cancer research, treatment and prevention

PHOTO: In this undated file photo, a couple argue on a city sidewalk.
Getty Images, FILE

Keeping feelings bottled up could put women at risk of stroke: Study

PHOTO: Jonathan Van Ness of "Queer Eye" poses for a portrait in New York, Aug. 21, 2019. The reality-show star opens up about being an addict, a sexual abuse victim and H.I.V. positive in a new memoir, "Over the Top."
Isak Tiner/The New York Times via Redux

How Jonathan Van Ness of 'Queer Eye' is making over the stigma of HIV

PHOTO: A woman in seen in a doctor's office in this undated stock image.
Hero Images/Getty Images/Hero Images

Long periods of hormone replacement therapy increase breast cancer risk, study says

PHOTO: In this undated file photo, a woman walks her Standard Poodle.
Ryan J. Lane/Getty Images, FILE

Owning a dog can help your heart, study finds

PHOTO: A mother breastfeeds a baby.
STOCK PHOTO/Getty Images

Breastfeeding basics: All of your questions answered

PHOTO: A woman gets a mammogram in this undated stock image.
Glow Wellness/Getty Images/Glow RM

New recommendations to offer more women risk assessment for BRCA-related mutations – that can include breast cancer